Author

Swagatam Das

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Preprint Aug 2026

Chain-of-Thought Shows the Path to a Tree: Realizing Branching Complexity

Chain of Thought (CoT) lifts the expressive ceiling of bounded-depth Transformers, with characterizations tying the number of CoT steps to circuit complexity classes. What remains largely missing are concrete instantiations with explicit, depth-bounded constructions, and the traversal procedures such characterizations...

Debanjan Dutta, A. Chakrabarty, Swagatam Das · 0 citations

#machine learning Dec 2023

HyPE-GT: where Graph Transformers meet Hyperbolic Positional Encodings

Comprehensive experiments on four molecular benchmarks, including the four large-scale Open Graph Benchmark datasets, substantiate the effectiveness of hyperbolic positional encodings in enhancing the performance of Graph Transformers and provide extensive theoretical underpinnings to offer insights into the working me...

Kushal Bose, Swagatam Das · arXiv.org · 2 citations